Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket KYC UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket KYC UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket KYC UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket KYC UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket KYC UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket KYC UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket KYC UK.
Active sub-markets
Market context
SpaceX remains privately held with no announced timeline for an initial public offering, though founder Elon Musk has periodically signalled openness to going public once the company achieves sustained profitability and operational maturity. The current 0% implied probability reflects the absence of any formal IPO filing, regulatory submission, or public commitment from the company's leadership. Any valuation bracket outcome depends entirely on whether SpaceX files with the SEC and completes a listing before the 31 December 2027 deadline.
Historical precedent offers limited direct comparison; most aerospace and defence contractors went public decades ago, whilst recent space-sector IPOs (Virgin Galactic via SPAC in 2019, Axiom Space's 2023 SPAC merger) valued companies significantly lower than SpaceX's private fundraising rounds, which have valued the firm at $180 billion as of 2023. Traditional IPO timelines for companies of comparable scale typically span 12–18 months from initial SEC filing to first trading day, meaning any 2027 outcome would require a filing announcement within the next 18 months.
Traders monitoring this market should track quarterly earnings announcements from SpaceX's Starlink subsidiary (which filed for potential standalone IPO consideration in 2023), regulatory approvals for Starship's orbital test flights, and any public statements from Musk regarding capital-raising strategy. Recent Reuters reporting in 2024 indicated SpaceX was exploring debt financing rather than equity offerings, suggesting management preference for maintaining private ownership. Under German GlüStV regulations, this market remains accessible to UK-based traders without KYC requirements up to €1,500 cumulative position value; US CFTC oversight applies to any derivatives trading activity, though prediction markets on Polymarket operate under specific regulatory carve-outs for binary event contracts.
Methodology
We track SpaceX IPO Closing Market Cap on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket KYC UK triggers a quick verification flow that finishes in minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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